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Voice recognition

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https://www.readbyqxmd.com/read/28802769/electrophysiological-correlates-of-voice-memory-for-young-and-old-speakers-in-young-and-old-listeners
#1
Romi Zäske, Katharina Limbach, Dana Schneider, Verena G Skuk, Christian Dobel, Orlando Guntinas-Lichius, Stefan Robert Schweinberger
Faces of one's own-age group are easier to recognize than other-age faces. Using behavioural measures and EEG, we studied whether an own-age bias (OAB) also exists in voice memory. Young (19 - 26 years) and old (60 - 75 years) participants studied young (18 - 25 years) and old (60 - 77 years) unfamiliar voices from short sentences. Subsequently, they classified studied and novel voices as "old" (i.e. studied) or "new", from the same sentences. Recognition performance was higher in young compared to old participants, and for old compared to young voices, with no OAB...
August 9, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28801402/reasons-for-non-adherence-to-cardiometabolic-medications-and-acceptability-of-an-interactive-voice-response-intervention-in-patients-with-hypertension-and-type-2-diabetes-in-primary-care-a-qualitative-study
#2
Aikaterini Kassavou, Stephen Sutton
OBJECTIVES: This study explored the reasons for patients' non-adherence to cardiometabolic medications, and tested the acceptability of the interactive voice response (IVR) as a way to address these reasons, and support patients, between primary care consultations. DESIGN, METHOD, PARTICIPANTS AND SETTING: The study included face-to-face interviews with 19 patients with hypertension and/or type 2 diabetes mellitus, selected from primary care databases, and presumed to be non-adherent...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28800333/pain-assessment-in-dementia-evaluation-of-a-point-of-care-technological-solution
#3
Mustafa Atee, Kreshnik Hoti, Richard Parsons, Jeffery D Hughes
Pain is common among people with moderate to severe dementia, but inability of patients to self-report means it often goes undetected and untreated. We developed the electronic Pain Assessment Tool (ePAT) to address this issue. A point-of-care App, it utilizes facial recognition technology to detect facial micro-expressions indicative of pain. ePAT also records the presence of pain-related behaviors under five additional domains (Voice, Movement, Behavior, Activity, and Body). In this observational study, we assessed the psychometric properties of ePAT compared to the Abbey Pain Scale (APS)...
August 9, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28800221/graphene-paper-pressure-sensor-for-detecting-human-motions
#4
Lu-Qi Tao, Kun-Ning Zhang, He Tian, Ying Liu, Dan-Yang Wang, Yuan-Quan Chen, Yi Yang, Tian-Ling Ren
The pressure sensors should have an excellent sensitivity in the range of 0-20kPa when applied in wearable applications. Traditional pressure sensors can't achieve both a high sensitivity and a large working range simultaneously, which results to their limited applications in wearable fields. There is an urgent need to develop a pressure sensor to make a breakthrough in both sensitivity and working range. In this paper, a graphene-paper pressure sensor which shows excellent performance in the range of 0-20kPa is proposed...
August 11, 2017: ACS Nano
https://www.readbyqxmd.com/read/28791513/what-s-in-a-voice-dolphins-do-not-use-voice-cues-for-individual-recognition
#5
Laela S Sayigh, Randall S Wells, Vincent M Janik
Most mammals can accomplish acoustic recognition of other individuals by means of "voice cues," whereby characteristics of the vocal tract render vocalizations of an individual uniquely identifiable. However, sound production in dolphins takes place in gas-filled nasal sacs that are affected by pressure changes, potentially resulting in a lack of reliable voice cues. It is well known that bottlenose dolphins learn to produce individually distinctive signature whistles for individual recognition, but it is not known whether they may also use voice cues...
August 8, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28769836/familiarity-and-voice-representation-from-acoustic-based-representation-to-voice-averages
#6
Maureen Fontaine, Scott A Love, Marianne Latinus
The ability to recognize an individual from their voice is a widespread ability with a long evolutionary history. Yet, the perceptual representation of familiar voices is ill-defined. In two experiments, we explored the neuropsychological processes involved in the perception of voice identity. We specifically explored the hypothesis that familiar voices (trained-to-familiar (Experiment 1), and famous voices (Experiment 2)) are represented as a whole complex pattern, well approximated by the average of multiple utterances produced by a single speaker...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28738288/it-doesn-t-matter-what-you-say-fmri-correlates-of%C3%A2-voice-learning-and-recognition-independent-of%C3%A2-speech-content
#7
Romi Zäske, Bashar Awwad Shiekh Hasan, Pascal Belin
Listeners can recognize newly learned voices from previously unheard utterances, suggesting the acquisition of high-level speech-invariant voice representations during learning. Using functional magnetic resonance imaging (fMRI) we investigated the anatomical basis underlying the acquisition of voice representations for unfamiliar speakers independent of speech, and their subsequent recognition among novel voices. Specifically, listeners studied voices of unfamiliar speakers uttering short sentences and subsequently classified studied and novel voices as "old" or "new" in a recognition test...
June 27, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28733246/defective-recognition-and-naming-of-famous-people-from-voice-in-patients-with-unilateral-temporal-lobe-tumours
#8
C Papagno, G Mattavelli, A Casarotti, L Bello, G Gainotti
Twenty-nine patients who underwent surgery for a temporal glioma, either in the left (16 patients) or right (13 patients) hemisphere, were administered standardized tests of unknown voice discrimination (UVD) and of famous voice recognition (VO-REC), which included tasks of familiarity evaluation, semantic identification and naming of famous voices. The UVD consisted of twenty stimuli, in which two audio files were consecutively presented; the subject was requested to judge whether the voices belonged to the same or different persons...
July 18, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28720526/effects-of-musical-expertise-on-oscillatory-brain-activity-in-response-to-emotional-sounds
#9
Sophie Nolden, Simon Rigoulot, Pierre Jolicoeur, Jorge L Armony
Emotions can be conveyed through a variety of channels in the auditory domain, be it via music, non-linguistic vocalizations, or speech prosody. Moreover, recent studies suggest that expertise in one sound category can impact the processing of emotional sounds in other sound categories as they found that musicians process more efficiently emotional musical and vocal sounds than non-musicians. However, the neural correlates of these modulations, especially their time course, are not very well understood. Consequently, we focused here on how the neural processing of emotional information varies as a function of sound category and expertise of participants...
July 15, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28712608/a-custom-developed-emergency-department-provider-electronic-documentation-system-reduces-operational-efficiency
#10
Joshua Feblowitz, Sukhjit S Takhar, Michael J Ward, Ryan Ribeira, Adam B Landman
STUDY OBJECTIVE: Electronic health record implementation can improve care, but may also adversely affect emergency department (ED) efficiency. We examine how a custom, ED provider, electronic documentation system (eDoc), which replaced paper documentation, affects operational performance. METHODS: We analyzed retrospective operational data for 1-year periods before and after eDoc implementation in a single ED. We computed daily operational statistics, reflecting 60,870 pre- and 59,337 postimplementation patient encounters...
July 13, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28711988/emotion-recognition-based-on-eeg-features-in-movie-clips-with-channel-selection
#11
Mehmet Siraç Özerdem, Hasan Polat
Emotion plays an important role in human interaction. People can explain their emotions in terms of word, voice intonation, facial expression, and body language. However, brain-computer interface (BCI) systems have not reached the desired level to interpret emotions. Automatic emotion recognition based on BCI systems has been a topic of great research in the last few decades. Electroencephalogram (EEG) signals are one of the most crucial resources for these systems. The main advantage of using EEG signals is that it reflects real emotion and can easily be processed by computer systems...
July 15, 2017: Brain Informatics
https://www.readbyqxmd.com/read/28694095/drawing-a-distinction-between-familiar-and-unfamiliar-voice-processing-a-review-of-neuropsychological-clinical-and-empirical-findings
#12
Sarah V Stevenage
Thirty years on from their initial observation that familiar voice recognition is not the same as unfamiliar voice discrimination (van Lancker & Kreiman, 1987), the current paper reviews available evidence in support of a distinction between familiar and unfamiliar voice processing. Here, an extensive review of the literature is provided, drawing on evidence from four domains of interest: the neuropsychological study of healthy individuals, neuropsychological investigation of brain-damaged individuals, the exploration of voice recognition deficits in less commonly studied clinical conditions, and finally empirical data from healthy individuals...
July 7, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28683338/encoding-focus-alters-diagnostic-recollection-and-event-related-potentials-erps
#13
P Andrew Leynes, Brittany A Mok
The influence of encoding focus on source memory was investigated using event-related potentials (ERPs). Encoding was focused on the self (self-focus) or on the speaker (other-focus) while hearing words spoken in a male or female voice. Examination of the behavioral and ERP evidence suggests that encoding focus alters the amount of diagnostic recollection. Self-focus encoding produced more positive encoding ERPs, led to greater old/new recognition, and elicited a greater Late Positive Component (LPC; the putative neural correlate of recollection) during the source test...
July 3, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28677519/population-consultation-a-powerful-means-to-ensure-that-health-strategies-are-oriented-towards-universal-health-coverage
#14
Katja Rohrer, Dheepa Rajan, Gerard Schmets
BACKGROUND: We seek to highlight why population consultations need to be promoted more strongly as a powerful means to move health reforms towards Universal Health Coverage (UHC). However, despite this increasing recognition that the "population" is the key factor of successful health planning and high-quality service delivery, there has been very little systematic reflection and only limited (international) attention brought to the idea of specifically consulting the population to improve the quality and soundness of health policies and strategies and to strengthen the national health planning process and implementation...
2017: World Health & Population
https://www.readbyqxmd.com/read/28669914/neuromagnetic-correlates-of-voice-pitch-vowel-type-and-speaker-size-in-auditory-cortex
#15
Martin Andermann, Roy D Patterson, Carolin Vogt, Lisa Winterstetter, André Rupp
Vowel recognition is largely immune to differences in speaker size despite the waveform differences associated with variation in speaker size. This has led to the suggestion that voice pitch and mean formant frequency (MFF) are extracted early in the hierarchy of hearing/speech processing and used to normalize the internal representation of vowel sounds. This paper presents a magnetoencephalographic (MEG) experiment designed to locate and compare neuromagnetic activity associated with voice pitch, MFF and vowel type in human auditory cortex...
June 29, 2017: NeuroImage
https://www.readbyqxmd.com/read/28669909/plastic-reorganization-of-neural-systems-for-perception-of-others-in-the-congenitally-blind
#16
S L Fairhall, K B Porter, C Bellucci, M Mazzetti, C Cipolli, M I Gobbini
Recent evidence suggests that the function of the core system for face perception might extend beyond visual face-perception to a broader role in person perception. To critically test the broader role of core face-system in person perception, we examined the role of the core system during the perception of others in 7 congenitally blind individuals and 15 sighted subjects by measuring their neural responses using fMRI while they listened to voices and performed identity and emotion recognition tasks. We hypothesised that in people who have had no visual experience of faces, core face-system areas may assume a role in the perception of others via voices...
June 30, 2017: NeuroImage
https://www.readbyqxmd.com/read/28660470/psychosis-secondary-to-an-incidental-teratoma-a-heads-up-for-psychiatrists-and-gynecologists
#17
Jeanette Voice, Jane M Ponterio, Nisha Lakhi
Anti-N-methyl-D-aspartate receptor encephalitis is a potentially fatal form of autoimmune encephalitis that originates secondary to a host immune response to neural tissue within a teratoma. We describe the case of a 17-year old girl who presented with acute onset psychosis, catatonic movements, urinary incontinence, fever, tachycardia, and fluctuating periods of hypotension and hypertension. A CT scan demonstrated an incidental 6 cm ovarian teratoma. The patient fully recovered after ovarian cystectomy, followed by medical management with intravenous immunoglobins and plasmapheresis...
June 28, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28659259/initial-progress-toward-development-of-a-voice-based-computer-delivered-motivational-intervention-for-heavy-drinking-college-students-an-experimental-study
#18
Christopher W Kahler, William J Lechner, James MacGlashan, Tyler B Wray, Michael L Littman
BACKGROUND: Computer-delivered interventions have been shown to be effective in reducing alcohol consumption in heavy drinking college students. However, these computer-delivered interventions rely on mouse, keyboard, or touchscreen responses for interactions between the users and the computer-delivered intervention. The principles of motivational interviewing suggest that in-person interventions may be effective, in part, because they encourage individuals to think through and speak aloud their motivations for changing a health behavior, which current computer-delivered interventions do not allow...
June 28, 2017: JMIR Mental Health
https://www.readbyqxmd.com/read/28648871/creation-of-an-open-framework-for-point-of-care-computer-assisted-reporting-and-decision-support-tools-for-radiologists
#19
Tarik K Alkasab, Bernardo C Bizzo, Lincoln L Berland, Sujith Nair, Pari V Pandharipande, H Benjamin Harvey
Decreasing unnecessary variation in radiology reporting and producing guideline-concordant reports is fundamental to radiology's success in value-based payment models and good for patient care. In this article, we present an open authoring system for point-of-care clinical decision support tools integrated into the radiologist reporting environment referred to as the computer-assisted reporting and decision support (CAR/DS) framework. The CAR/DS authoring system, described herein, includes: (1) a definition format for representing radiology clinical guidelines as structured, machine-readable Extensible Markup Language documents and (2) a user-friendly reference implementation to test the fidelity of the created definition files with the clinical guideline...
June 22, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28629258/implementation-and-preliminary-evaluation-of-c-tone-a-novel-algorithm-to-improve-lexical-tone-recognition-in-mandarin-speaking-cochlear-implant-users
#20
Lichuan Ping, Ningyuan Wang, Guofang Tang, Thomas Lu, Li Yin, Wenhe Tu, Qian-Jie Fu
OBJECTIVES: Because of limited spectral resolution, Mandarin-speaking cochlear implant (CI) users have difficulty perceiving fundamental frequency (F0) cues that are important to lexical tone recognition. To improve Mandarin tone recognition in CI users, we implemented and evaluated a novel real-time algorithm (C-tone) to enhance the amplitude contour, which is strongly correlated with the F0 contour. METHODS: The C-tone algorithm was implemented in clinical processors and evaluated in eight users of the Nurotron NSP-60 CI system...
June 20, 2017: Cochlear Implants International
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